This is in addition to the cancellation of 29 IPOs last year. The probable amount that these 29 companies were planning to raise was about Rs 32,400 crore.

"Starting January 1, 2011, till date, about 46 IPOs were called-off. The total amount they expected to raise was about Rs 38,326 crore," the report noted.

All these companies had valid SEBI approval for their IPOs. Even then, they could not open their IPOs within the validity period of one year from the date of SEBI approval, it said.

Besides, about four IPOs have been withdrawn, including Samvardhana Motherson, Goodwill Hospitals, Plastene and Galaxy Surfacants, due to poor response. The total amount these IPOs were expected to raise was about Rs 2,000 crore.

"All in all, 50 IPOs did not materialise during the period between January 1, 2011 and May, 2012. The aggregate that these IPOs expected to raise was about Rs 40,326 crore," the report stated.

Fearing that the trend will impact corporates' ability to raise funds to finance their expansion projects, the report said this may result in a slowdown in their capacity building and job creation.

Embassy Property Developments' Rs 2,400-crore IPO could not meet its opening deadline of March 6, 2012 and thus expired.

Similarly, VRL Logistics' Rs 875-crore offer also expired after it failed to open its issue till March 9, 2012.

The BSE benchmark Sensex has tanked about 22 % from January 2011 till date.